Abstract: A drawing and dispensing device includes a container for receiving a liquid and having an opening coupled to a pipe for drawing a liquid into the container. A check valve is attached to the port. A pump device is attached to the check valve for pumping the liquid into the container. The check valve includes a plate having one or more orifices, and a resilient panel attached to the plate for blocking the-orifice and for allowing air to be drawn out of the container only and for preventing the air from flowing into the container via the check valve. A balancing valve is attached to the container for balancing the pressure in the container and for preventing the container from being deformed.

Abstract: A container module includes a closed hollow body. A first tube has an upper end disposed outside of the closed hollow body and communicating with the waste supply and a lower end mounted in the closed hollow body. A second tube has an upper end disposed outside of the closed hollow body and communicating with the pump and a lower end mounted in the closed hollow body. The lower end of the second tube is at a level higher than that of the lower end of the first tube.